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Acanthuriformes (Surgeonfishes) >
Chaetodontidae (Butterflyfishes)
Etymology: haraguchiae: Named for Mrs. Yuriko Haraguchi, who supported the authors' ichthyological research and fish collection management at the Kagoshima University Museum as a volunteer over 15 years.
Eponymy: Mrs Yuriko Haraguchi was a volunteer at the Kagoshima University Museum. She was honoured because she “…has kindly supported our ichthyological research and fish collection management at the Kagoshima University Museum as a volunteer.” (Ref. 128868), visit book page.
البيئة: الوسط / المنطقة المناخية / نطاق العمق / نطاق التوزيع
البيئة
بحري مرتبطة بالشعاب; نطاق العمق 37 - 162 m (Ref. 123118). Tropical
Western Pacific: Japan and the Philippines.
الحجم / وزن / العمر
النضج: Lm ?  range ? - ? cm
Max length : 109 cm SL ذكر/ مختلط الجنس; (Ref. 127431)
الأشواك الظهرية (المجموع) : 10 - 11; الأشعة الظهرية الناعمة (المجموع) : 21 - 22; شوكة شرجية: 3; أشعه شرجية لينه: 16 - 17. This species is distinguished by the following characters: non-pored lateral-line scales 5–8; scale
rows above lateral line 11-12 and below lateral line 22-28; scale rows under longer axis of black blotch on dorsal-fn soft-rayed portion 10-12; head depth 46.2-54.9% (mean 51.6%) of SL; postorbital short, length 12.1-14.1% (13.1%) of SL; long snout, its length 33.2-38.7% (35.6%) of
HL; short pectoral-fin, its length 27.9-32.4% (29.5%) of SL; anterior margin of second body band does not reach anteroventrally to pelvic-fin spine base; pelvic-fin spine and first pelvic-fin soft ray is white and remaining soft rays and membranes entirely black; membranes associated with first and second dorsal-fin spines are blackish distally; second and third body bands without blackish edges (Ref. 123118).
Cross section: compressed.
Taken in by bottom trawls, thus indicating a sandy bottom habitat. Also, photos taken of this species were from rocky bottom areas in fairly deep water and were observed occurring in pairs (Ref. 123118).
دورة الحياة وسلوك التزاوج
النضج | التكاثر | وضع البيض | بيض | الخصوبة | اليرقات
Uejo, T., H. Senou and H. Motomura, 2020. Roa haraguchiae, a new species of butterflyfish (Teleostei: Perciformes: Chaetodontidae) from Japan and the Philippines. Ichthyological Research 67(3):408-415. (Ref. 123118)
حالة القائمة الحمراء للاتحاد الدولي لحفظ الطبيعة والموارد الطبيعية (Ref. 130435: Version 2025-2 (Global))
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تقديرات تستند إلى النماذج
مؤشر التنوع الشُعبي الوراثي (مرجع 82804) |
PD50 = 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.02239 (0.01112 - 0.04506), b=3.01 (2.84 - 3.18), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
مستوى غذائي (مرجع 69278) |
4.4 ±0.5 se; based on size and trophs of closest relatives |
المرونه (مرجع 120179) |
منخفظ جدا, الحد الزمني الأدني لتضاعف عدد أفراد المجتمع أكثر من 14 سنة (Preliminary K or Fecundity.). |
ضعف الصيد (Ref. 59153) |
High to very high vulnerability (68 of 100). 🛈 |